Well-drilling machine.



N0. 854,606. PATENTED MAY 21, 1907.

Y J. BOURKE.

WELL DRILLING MACHINE.

APPLICATION FILED NOV. 22, 1905,

2 SHEETSSHEET 1.

PATENTED MAY 21, 1907 J. BOURKE. WELL DRILLING MACHINE.

APPLICATION FILED NOV 22, 1906.

2 SHEETSSHEET 2.

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, shaft of the reel being so mounte UNITED STATES PATENT OFFICE.

JAMES BOURKE, OF INDEPENDENCE, ANsAs.

1 WELL-DRILLING MACHINE.

Specification of Letters Patent. Application filed November 22,1905. Serial No. 288,592.

fiatented ma 21, 1907.

This invention relates to well drilling ma-.

chines and it has for an object to provide means whereby the bull wheel and the casing-rope reel may be driven from a shaft which drives the walking beam, without operating the walking beam. 4

Other and further objects will a pear in the following 'descri tion and will e more particularly pointe out in the appended claims. 7 w ,In the drawings, Figure 1 is a side elevation of my machine, Fig. 2 is atop plan view,

and Figs. 3 and 4 are detail views of the pit-v man connecting the crank shaft and the walking beam, Fig, 5 is a detail showing the sand rope reel operating lever, and Fig. 6 is. a front elevation of the derrick.

The main frame ofthe machine, which may or may not besupported on wheels, consists of the side sills 1 and 2, the end sills 3 and-4, transverse sills 5 and 6, a longitudinal sill 7 connecting end sill 4 with transverse sill 6, and a longitudinal sill 8 connecting end sill 3 with transverse sill 5. p

A gas or other engine 9 is supported on the rear end of the frame on sills,1 and 7 and has its pitman 10 connected to a cranked shaft drive 11 which is journaled on sills 1 and 7 and projects at both ends from the side of said sills.

Upon the inner projecting end of the drive shaft 11 is keyed a fly wheel 12 with which a wheel 13 on a sand reel 14 is ada ted to fric tionally engage to be driven t ereby" and consequently draw in the sand rcpe, the

that it may be swung by lever 16 to permit this engagement. The shaft may also be swung so that wheel 13 may be thrown into engage mentwith a fixed brake face 17 on sill 4.

Upon the outer projecting end of the drive,

by'a pair of frames upon the sills 1 and 8.

Each of these frames comprises a pairofposts 22 seated at their lower ends in recesses in the sills, and connected at their upper ends by a beam 23,-bolts 24 passing through the sill, the posts and the beam to hold the parts together. Upon these beams are bolted the journals for the shaft 21, the journals being also held tothe beams by straps 25 which pass over the journals and are secured at their ends by the bolts 24. Brace straps 26 are also held at their upper ends by the bolts 24 and are secured at their lower ends to one of the sills 1 or 8.-

Sprocket wheels 27 and 28 are loosely journaled upon the crank shaft 21 and are adapted to be connected by means of a clutch 29 0 erated by lever 30, with said shaft, to turn t erewith. The sprocket wheel 27 is geared by means of a sprocket chain 32 to a sprocket on a bull wheel 31, journaled on side sills 1 and 2 between the transverse sills 5 and 6, while the sprocket 28 is geared, by means of a sprocket chain 33, to'a sprocket 34 on a shaft 35 journaled on the opposite side of crank shaft 21 in sills 1, 2 and 8. Upon this shaft 35 is secured a casing-'rope-reel 36 and a brake drum 37 controlled by band-brake 38 and lever 39. i

The manner of connecting the crank shaft 21 to the walking beam is as follows: The crank shaft carries a crank 40 having a wrist pin 41 adjustable in openings 42. wrist pin is connected one end of a pitman 43, the upper end of the pitman being yoked and pivotally, connected to one end of the usualwalking beam 44 which is pivotally mounted on the upper end ,of the samson post 45. The pitman 43 is formed to permit the connection between crank shaft 21 and walking beam to be broken sothat the shaft may opcrate either the casing rope reel or the bull wheel. This is accomplished by dividing the pitman into two members 43 and 43 ,-'the upper one 43 being in the form of a yoke and comprising two strips 43 and 43 while the lower one 43 is pivoted at 44 between the strips and has its upper end notched at 45 an of the notch, whereby a sliding bolt 47 movingin slots 48 in strips 43 and43 may be caused to automatically ride on the rounded ends 46 and drop in notch 45' when the members 43 and 43* are alined. A pin 49 enters notch 50 and limits the pivoting of the members to one direction.

To this bevelel or rounded at 46 on each side 39 is operated to cause'band brake 38 to act 1 I claim and desire to secure by Letters Pata pulley 57 located on the side near the top of between' crank shaft 21 and the Walking beam, a cablej 1, leading from the bolt 47 upwardly -over pulley 52 and 53 and downwardly to a point near the -.b ottom of the samson post,- is pulled.

The drill rope. 54 leads-from the bull wheel 31 upwardly over the pulley 55 at the top of the derrick and is engaged by the free end of the walking beam 44 in the usual manner, while a sand rope 56 leads from reel 14 over the derrick. This derrickcomprises a pair of spaced parallel standards 58 supported on a base 59 and held by guy ropes or wires 60'leading from the top of the standards to the base. Between these standards is located a standard 6'1 which'supports pulleys 55 and 57 before mentioned, and which is adapted to be clamped between the upper ends of stand-- ards 58 by plates 62 which-when loosened permit the standard 61 'to drop'between the standards. I i

When .it is desired to pperate the drill rope, clutch 29 is shifted to connect crank shaft 21 with sprocket wheel 27 and thus, through chain 32 and sprocket 31, motion is transmitted from shaft 21 to bull wheel 31. Motion is transmitted from shaft 21 to the casing rope reel by means ofsprocket 28, chain 33, and sprocket 34, and to prevent excessive speed during the lowering'of the casing, lever on drum 37.

During the operation of the bull wheel and the casing rope reel from the shaft 21, the connection between shaft 21 and walking beam 44 is broken.

Having thus described my invention what ent is: 1

1. In a well drilling machine, the combination with the crank-shaft, of a walking-b eam operated thereby, means for breaking connection between the walking beam and the crank shaft, a bull-wheel, a casing-rope-reel, and a clutch mechanism for establishing connection between the crank shaft and the bullwheel or between the crankshaft and the casing-rope-reel.

2. In a well drilling machine, thecombinal stance tion of the main frame provided with recesses, posts seated on their ends in said recesses, a beam connecting the upper ends of the posts, bolts passing through the frame, the posts and the beam, a journal bearing bolted to the beam, ,a strap passin around the ournal bearing and secured at ts ends to the beam by the bolts that pass through the posts, and

bracestraps also secured at one of their ends.

by the bolts and secured to the main frame.

3. In a well drilling machine, the combina tion with th'e crank shaft andthe walking beam, of a-pitman connecting said members, and formed of two members adapted to be moved to. permit the crank shaft to rotate Without rocking the walking beams.

4. In a well drilling machine, the combina- I tion with the crank shaft and the walking beam, of a pitman connecting said i'nembers, and formed of two members pivoted together, and means holding the members against relative movement.

5. In a well drilling machine, the combination with the crankshaft and the walking tomatically locked when the controlling rope is released.

7. In a well drilling machine the combination with the crank shaft'and, the walking beam, of a pitman connecting said members, and formed of two members pivoted together, and means holding the members against relative movement and comprising a sliding bolt on one member adapted to engage the other member.

. JAMES BOURKE. In presence of two Witnesses- I. B. WALLACE,

W. L. CoNNnLLY. 

